Have you met such problem?
1.Annoying bugs run in every corner of your home.
2.Noise and light reduces your sleep quality.
3.Air condition does not work well in summer and winter. costs a lot of Energy/Money.
4.Your home has a lot of dust and spiderweb when you in outside or travel.
5.When winding and raining, the floor usually gets soaked.
How to solve out All of these problems?
An upgrade door seal bottom with bigger soundproof hole and 3 layers,
just simply attached it to the door, all the troubles will be gone and save electric bill.